Question about Dell Latitude C400 Notebook

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When i power on my c400 the 3 green lights, light up and then it turns off. the battery is getting full charge. no sound comes from it. any idea what is wrong with it. I changed the ram thinking that could be a solution. but it didnt work.

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  • Anonymous Feb 26, 2009

    Well i am using to different batteries it all started when my friend changed the ram and it the problem started so i switched back the ram and its still doing it....i have it completely opened up the battery connector looks fine

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  • Dell Master
  • 5,568 Answers

I don't know how old your system is but the battery packs have lifetimes that seem to vary from about 6 months to a couple of years.
I'm curious as to how you have established that the battery is getting 'full charge?'
The three keyboard LEDs are the start of the 'power-on self-check' and the fact that they go out again can mean that they are finished with the keyboard test and that the initialization is proceeding or that the battery voltage has collapsed.
If you don't own a multimeter (you should-they are cheap) I don't know how you know whether the battery pack is charged or not.
Battery packs can also fail without dying of old age; there is a thermal fuse in all of them that will melt open if the temperature surpasses a safe point (fairly low) and these Chinese parts are terribly unreliable and may fail just for fun. When this happens, they will not charge and in some, they won't produce any voltage at the pack's contacts either. 

Posted on Feb 25, 2009

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